Mass loss from the progenitor of SN 1006?
We have observed the remnant of SN 1006 with high resolution and sensitivity at 1.4 GHz. These data are combined with observations performed 11 years before to measure the expansion of the radio shell. The expansion parameter δ, defined as R α t δ, is found to be ∼ 0:62 for the brightest lobes. Acco...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_14052059_v33_n_p157_Reynoso |
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todo:paper_14052059_v33_n_p157_Reynoso2023-10-03T16:12:57Z Mass loss from the progenitor of SN 1006? Reynoso, E.M. Castelletti, G. Moffett, D.A. Hughes, J.P. ISM: supernova remnants Radio continuum: ISM Stars: mass loss Supernova: individual (SN 1006) We have observed the remnant of SN 1006 with high resolution and sensitivity at 1.4 GHz. These data are combined with observations performed 11 years before to measure the expansion of the radio shell. The expansion parameter δ, defined as R α t δ, is found to be ∼ 0:62 for the brightest lobes. According to theoretical models, this value appears to be compatible with ejecta interacting with a circumstellar density profile decreasing as r -2, characteristic of steady presupernova mass loss. However, this could not be the case if SN 1006 is still in the ejecta-dominated evolutionary stage. © 2008: Instituto de Astronomía. Fil:Reynoso, E.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Castelletti, G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. CONF info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_14052059_v33_n_p157_Reynoso |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
ISM: supernova remnants Radio continuum: ISM Stars: mass loss Supernova: individual (SN 1006) |
| spellingShingle |
ISM: supernova remnants Radio continuum: ISM Stars: mass loss Supernova: individual (SN 1006) Reynoso, E.M. Castelletti, G. Moffett, D.A. Hughes, J.P. Mass loss from the progenitor of SN 1006? |
| topic_facet |
ISM: supernova remnants Radio continuum: ISM Stars: mass loss Supernova: individual (SN 1006) |
| description |
We have observed the remnant of SN 1006 with high resolution and sensitivity at 1.4 GHz. These data are combined with observations performed 11 years before to measure the expansion of the radio shell. The expansion parameter δ, defined as R α t δ, is found to be ∼ 0:62 for the brightest lobes. According to theoretical models, this value appears to be compatible with ejecta interacting with a circumstellar density profile decreasing as r -2, characteristic of steady presupernova mass loss. However, this could not be the case if SN 1006 is still in the ejecta-dominated evolutionary stage. © 2008: Instituto de Astronomía. |
| format |
CONF |
| author |
Reynoso, E.M. Castelletti, G. Moffett, D.A. Hughes, J.P. |
| author_facet |
Reynoso, E.M. Castelletti, G. Moffett, D.A. Hughes, J.P. |
| author_sort |
Reynoso, E.M. |
| title |
Mass loss from the progenitor of SN 1006? |
| title_short |
Mass loss from the progenitor of SN 1006? |
| title_full |
Mass loss from the progenitor of SN 1006? |
| title_fullStr |
Mass loss from the progenitor of SN 1006? |
| title_full_unstemmed |
Mass loss from the progenitor of SN 1006? |
| title_sort |
mass loss from the progenitor of sn 1006? |
| url |
http://hdl.handle.net/20.500.12110/paper_14052059_v33_n_p157_Reynoso |
| work_keys_str_mv |
AT reynosoem masslossfromtheprogenitorofsn1006 AT castellettig masslossfromtheprogenitorofsn1006 AT moffettda masslossfromtheprogenitorofsn1006 AT hughesjp masslossfromtheprogenitorofsn1006 |
| _version_ |
1807315604156186624 |